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Mainspring
For ETA 2521
1.10 x 0.120 x 320 x 10.5 mm
Height (H): 1.1mm
Thickness (T): 0.12mm
Total Length (TL): 320mm
Barrel Diameter (BD): 10.5mm
End Type: Auto
To look for similar mainsprings that exactly match a specific dimension, select it from the links above.
GR Approximation
This mainspring does not have a GR reference. The following GR mainsprings are the closest fit, when values differ the exact value is shown brackets for reference:
Movement Listing
This mainspring is used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Bulova C9100034 | BULOVA CASE REFERENCE | |
| Bulova E103 | BULOVA 1000.11 | |
| Citizen 4-163044 | CITIZEN CASE | |
| Seiko Y480-7830 | PULSAR CASE REFERENCE | |
| Citizen 4-296982 | CITIZEN CASE | |
| Seiko Y480-7830 | PULSAR CASE REFERENCE | |
| Citizen 4-L06228 | CITIZEN CASE | |
| Doxa FEF 270 | FEF 270 | 5.25 x 8.5 |
| Felsa 4037 | 5.75 | |
| Seiko V801-0940 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Fleurier 307 | 10.5 | |
| Omega 14730 | OMEGA CASE - USES CALIBER 561 | |
| Girard Perregaux 25 (NEW) | ||
| Omega 14730 | OMEGA CASE - USES CALIBER 561 | |
| Omega 3910 | OMEGA CASE USES CALIBER 240 | |
| Citizen 4-L06228 | CITIZEN CASE | |
| Omega 5038 | OMEGA CASE USES CALIBER 680/682 | |
| Omega 535.013 | OMEGA CASE REFERENCE | |
| Omega 5038 | OMEGA CASE USES CALIBER 680/682 | |
| Savoie 8F | 21,600 BPH | 6.75 x 8 |
| Seiko 2620-5609 | SEIKO CASE REFERENCE | |
| Seiko 2949-5280 | SEIKO CASE REFERENCE | |
| Seiko 3M22-0A50 | SEIKO CASE 951201 | |
| Seiko 8621-5160 | SEIKO CASE REFERENCE | |
| Seiko V801-0940 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko Y480-7830 | PULSAR CASE REFERENCE | |
| Zodiac 20 | 21600 BPH | 6.75 x 8 |
| Zodiac 521B | 13 | |
| Felsa 4037 | 5.75 |
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Similar Mainspring Listing
This mainspring is similar to the mainspring used by the following movements. A similar mainspring differs slightly in one or more dimensions but may possibly still work as a replacement. When values differ the exact value is shown brackets for reference:
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